From 41f001f0fcb665dd83fe19776fb1fb9997a1a242 Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Tue, 16 Aug 2011 21:41:33 +0000 Subject: [PATCH] Migrate weak-external.cpp from llvm/test/FrontendC++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137763 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/CodeGenCXX/weak-external.cpp | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 test/CodeGenCXX/weak-external.cpp diff --git a/test/CodeGenCXX/weak-external.cpp b/test/CodeGenCXX/weak-external.cpp new file mode 100644 index 0000000000..f1ecc890ab --- /dev/null +++ b/test/CodeGenCXX/weak-external.cpp @@ -0,0 +1,19 @@ +// RUN: %clang -fexceptions %s -S -emit-llvm -o - | FileCheck %s +// PR4262 + +// CHECK-NOT: _ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag + +// The "basic_string" extern template instantiation declaration is supposed to +// suppress the implicit instantiation of non-inline member functions. Make sure +// that we suppress the implicit instantiation of non-inline member functions +// defined out-of-line. That we aren't instantiating the basic_string +// constructor when we shouldn't be. Such an instantiation forces the implicit +// instantiation of _S_construct. Since _S_construct is a member +// template, it's instantiation is *not* suppressed (despite being in +// basic_string), so we would emit it as a weak definition. + +#include + +void dummysymbol() { + throw(std::runtime_error("string")); +} -- 2.40.0